func main() {
const maxIter = 1024
var d = mandel.NewData(320, 200, -0.7435669, 0.1314023, 0.0022878)
m := make(map[int]int)
var maxV = 0
for y := 0; y < d.MaxY; y++ {
for x := 0; x < d.MaxX; x++ {
dx := float64(x) * d.StepX
dy := float64(y) * d.StepY
iter := mandel.Iterate(d.UpperLeftRe+dx, d.UpperLeftIm+dy, maxIter)
m[iter] = m[iter] + 1
if m[iter] > maxV {
maxV = m[iter]
}
fmt.Println(x, d.MaxY-y, iter)
}
}
for x := 1; x <= maxV; x++ {
for k, v := range m {
if x == v {
fmt.Println("iter", k, " -> count", v)
}
}
}
}
func main() {
d := mandel.NewData(1024, 800, -0.7435669, 0.1314023, 0.0022878)
pi := pngimage.NewPngimage(d.MaxX, d.MaxY, "mandel.png")
it := task.IterateTasks(d, pi)
for t := range it {
iter := mandel.Iterate(t.CRe, t.CIm, 1024)
c := getColor(iter)
pi.Img.Set(t.X, d.MaxY-t.Y, c)
}
pi.Save()
}
func iterateSubPixelTasks(d *mandel.Data, pi *pngimage.Pngimage, subPixel int) {
spX := d.StepX / float64(subPixel)
spY := d.StepY / float64(subPixel)
b := pi.Img.Bounds()
for y := b.Min.Y; y < b.Max.Y; y++ {
for x := b.Min.X; x < b.Max.X; x++ {
sumIter := 0
for sx := 1; sx <= subPixel; sx++ {
for sy := 1; sy <= subPixel; sy++ {
cRe := d.UpperLeftRe + float64(x)*d.StepX + float64(sx)*spX
cIm := d.UpperLeftIm + float64(y)*d.StepY + float64(sy)*spY
iter := mandel.Iterate(cRe, cIm, maxIter)
sumIter += iter
}
}
fIter := float64(sumIter) / float64(subPixel*subPixel)
pi.Img.Set(x, d.MaxY-y, getColor(fIter))
}
}
}
func main() {
var maxIter = 10 * 360
var d = mandel.NewData(640, 400, -0.7435669, 0.1314023, 0.0022878)
for colScale := 30; colScale < 360; colScale += 30 {
for colShift := 0; colShift < colScale; colShift += 6 {
n := fmt.Sprintf("mandel-scale-%04d-shift-%03d.png", colScale, colShift)
fmt.Println("Render:", n)
pi := pngimage.NewPngimage(d.MaxX, d.MaxY, n)
it := task.IterateTasks(d, pi)
for t := range it {
iter := mandel.Iterate(t.CRe, t.CIm, maxIter)
pi.Img.Set(t.X, d.MaxY-t.Y, getColor(iter, colScale, colShift))
}
pi.Save()
}
}
}
func main() {
const maxIter = 10 * 360
var d = mandel.NewData(640, 400, -0.7435669, 0.1314023, 0.0022878)
var iteration [640][400]int
fmt.Println("Iterate")
for y := 0; y < d.MaxY; y++ {
for x := 0; x < d.MaxX; x++ {
dx := float64(x) * d.StepX
dy := float64(y) * d.StepY
iteration[x][y] = mandel.Iterate(d.UpperLeftRe+dx, d.UpperLeftIm+dy, maxIter)
}
}
var err error
var c color.Color
for colorShift := 0; colorShift < 36; colorShift++ {
n := fmt.Sprintf("mandel-hue-colorshift-%02d.png", colorShift)
pi := pngimage.NewPngimage(d.MaxX, d.MaxY, n)
for y := 0; y < d.MaxY; y++ {
for x := 0; x < d.MaxX; x++ {
iter := iteration[x][y]
h := float64((iter+colorShift*10)%360) / 360.0
if c, err = hue.Color(h); err != nil {
panic(err)
}
pi.Img.Set(x, d.MaxY-y, c)
}
}
fmt.Println("write file", n)
pi.Save()
}
}